The Solfeggio Interface Version 4 - by David Weeks (.exe) Professionally Created Audio Therapy Interface is a 2 Meg Digital .exe Download named SolfeggioInterfaceV4.exe The Solfeggio Interface contains Three Separate Digital Audio Therapy Interfaces joined into One Powerfully Effective Audio Therapy Tool. With new version 4, You get Solfeggio 1 with high and low range frequencies ranging from 174hz to 973hz You get Solfeggio 2 with Chakra Specific related frequencies. Also included is the latest Schuman Resonance Interface containing extremely low earth frequencies. Audio Therapy has been around for a while. Intended for use with a good set of headphones, the Solfeggio Audio Therapy Interface is a powerful digital audio therapy tool built by a musician biologist. Select specially pre-programmed frequencies, overlap as many as you wish to create your own bi-nural beats. Clear when ever you want and start again. Experience the power of professonal bi-nural meditation in the privacy of your own home. Solfeggio lets you choose the audio frequency settings yourself. Take control of your own Audio Therapy needs and Try The Solfeggio Interface today! Thank you for looking!